Christianfeast days:

Anthimus of Nicomedia, Assicus, Floribert of Liège, John of Constantinople, Liberalis of Treviso, Pollio, Virgin of Montserrat, co-patroness ofCatalonia, Zita, Origen Adamantius, April 27 (Eastern Orthodox liturgics)

On April 27, various Christian traditions commemorate several saints including early martyrs like Anthimus of Nicomedia and domestic patronesses like Saint Zita.
On this day, the Eastern Orthodox Church and other Christian communities honor a group of saints whose lives spanned centuries and regions. Anthimus of Nicomedia served as a bishop and was martyred under Emperor Diocletian. Saint Zita is celebrated as the patroness of domestic servants for her humility and dedication. Liberalis of Treviso, John of Constantinople, and Floribert of Liège are remembered for their leadership and piety. The Virgin of Montserrat is venerated as a co-patroness of Catalonia, reflecting the deep regional devotion to Mary. These observances connect believers with the rich tapestry of Christian history, inspiring faith and service.
feast days Anthimus of Nicomedia Assicus Floribert of Liège John of Constantinople Liberalis of Treviso Pollio Virgin of Montserrat Catalonia Zita Origen Adamantius April 27 (Eastern Orthodox liturgics)

Day of Russian Parliamentarism(Russia)

A Russian observance marking the opening of the first State Duma in 1906 and celebrating parliamentary governance.
Established to honor the tradition of parliamentary democracy, this day commemorates April 27, 1906, when the first State Duma convened in imperial Russia. It highlights the evolution of representative government and legislative debate in Russian history. Government officials, legislators, and civic groups hold events, seminars, and public discussions on the principles of lawmaking and citizen participation. The observance underscores the importance of parliamentary institutions in the nation's political development.
Day of Russian Parliamentarism Russia

Day of the Uprising Against the Occupying Forces(Slovenia)

Slovenia's national holiday remembering the 1941 uprising against Axis occupation during World War II.
This day marks the formation of the Liberation Front of the Slovenian People and the start of organized resistance on April 27, 1941. It honors the courage of those who opposed occupying forces and laid the foundation for Slovenia's eventual independence. Official ceremonies, wreath-laying at monuments, and cultural programs educate citizens about this pivotal moment in national history. Schools and museums often hold special exhibitions to preserve and teach the legacy of resistance and solidarity.
Day of the Uprising Against the Occupying Forces Slovenia

Flag Day (Moldova)

Commemorates the adoption of Moldova's tricolor flag on April 27, 1990.
Flag Day celebrates the official hoisting of the blue, yellow, and red tricolor in 1990, symbolizing Moldova's cultural identity and sovereignty. Festivities include flag-raising ceremonies in public squares, patriotic concerts, and educational events in schools. Citizens display the national flag on homes and vehicles, and government buildings are adorned with banners. The day reinforces national pride and unity, reflecting Moldova's journey toward independence and self-determination.
Flag Day (Moldova)

Freedom Day (South Africa)

Celebrates South Africa's first democratic elections held on April 27, 1994, ending apartheid.
Freedom Day marks the historic election that allowed all citizens, regardless of race, to vote for the first time in 1994. It symbolizes the triumph of democracy and the end of decades of institutionalized racial segregation. Commemorations include political speeches, cultural performances, and community gatherings. Many South Africans visit Robben Island, where Nelson Mandela was imprisoned, to honor the sacrifices made for freedom. The day serves as a reminder of the ongoing pursuit of equality and social justice.
Freedom Day (South Africa)

Independence Day, celebrates the independence ofSierra Leonefrom United Kingdom in 1961.

Marks Sierra Leone's independence from the United Kingdom on April 27, 1961.
On this day in 1961, Sierra Leone became a sovereign nation within the Commonwealth, ending over a century of colonial rule. Celebrations feature parades, cultural dances, and official speeches by government leaders. Citizens wear traditional attire and participate in community feasts that showcase local cuisine and music. The holiday honors national heroes who fought for self-governance and highlights the country's cultural diversity and resilience.
Independence Day Sierra Leone

Independence Day, celebrates the independence ofTogofrom France in 1960.

Celebrates Togo's independence from France on April 27, 1960.
Togo's Independence Day commemorates the nation's emergence from colonial rule in 1960. Festivities include flag-raising ceremonies, military parades, and cultural performances highlighting traditional music and dance. Political leaders deliver speeches reflecting on the country's progress and aspirations. Citizens take part in communal celebrations, showcasing the unity and cultural heritage of Togo's diverse ethnic groups.
Independence Day Togo

King's Day(Netherlands,Aruba,Curaçao,Sint Maarten) (celebrated on April 26 if April 27 falls on a Sunday)

A festive national holiday celebrating the monarch's birthday with street markets and orange attire.
Known as Koningsdag, King's Day is marked by vibrant street parties, flea markets, and concerts across the Netherlands and its constituent countries. Citizens dress in orange—the national color—to honor the royal family and engage in free markets where anyone can sell goods without a permit. Boat parades in Amsterdam's canals, live music, and food stalls create a lively atmosphere. If April 27 is a Sunday, celebrations move to April 26 to respect traditional church services.
King's Day Aruba Curaçao Sint Maarten

National Veterans' Day(Finland)

A Finnish observance honoring veterans of the country's wars on April 27.
National Veterans' Day recognizes the service and sacrifice of Finland's war veterans, including those who fought in the Winter War and Continuation War. Ceremonies at military cemeteries and memorials feature wreath-laying and moments of silence. The day promotes awareness of veterans' contributions and supports organizations that provide care services. Schools and community groups host educational programs highlighting Finland's history and the resilience of its people.
National Veterans' Day

Anthimus of Nicomedia

Honors Saint Anthimus of Nicomedia, a bishop martyred under Emperor Diocletian.
Saint Anthimus served as bishop in Nicomedia during the early 4th century and was executed for his Christian faith during the Diocletian persecution. He is venerated for his steadfast commitment to the Gospel and his role in supporting persecuted Christians. Churches dedicated to Saint Anthimus celebrate his feast with liturgies, prayers, and hymns recalling his courage. His legacy continues to inspire believers facing trials for their faith.
Anthimus of Nicomedia

Assicus

Feast day of St. Assicus, the 5th-century Irish bishop and artisan known for his metalworking and friendship with St. Patrick.
Saint Assicus of Elphin served as the first bishop of Elphin in Ireland and was a trusted companion of St. Patrick. A skilled craftsman, he was renowned for creating ecclesiastical objects from metal and wood, earning him the title of patron saint of metalworkers and pipe makers. His legacy endures in the Diocese of Elphin, where he established churches and schools. Assicus's life exemplified humility, dedication to faith, and the integration of artistry into worship. Pilgrims visit the site of his ancient cathedral to honor his contributions to early Irish Christianity.
Assicus

Floribert of Liège

Commemoration of St. Floribert, an 8th-century bishop of Liège celebrated for his devout leadership and service to his flock.
Saint Floribert of Liège served as bishop in the Frankish Kingdom during the 8th century and was known for his unwavering piety and pastoral care. He succeeded in strengthening the Church's role in society through charitable works and promoting monastic life. Under his guidance, the Diocese of Liège saw the restoration of churches and the support of religious education. His feast day on April 27 honors his dedication to faith and his lasting impact on the Christian community of present-day Belgium. Devotees visit his shrine to seek inspiration from his example of humble leadership.
Floribert of Liège